Different Type Of Mi Ecu

[large 33]

Is there a consensus as to the differences between the motronic ML4.1 and the ML4

 

ML4.1 ecu No 0 261 200 140 as found in the BX 16V

 

ML4 ecu No 0 261 200 139 as found in the Mi 16X4 (I think)

[Ryan 99]

Tthe differences are really only very minor differences in the mapping - fuel and ignition tweaked in a few places here and there, Not even noticeable.

 

The only real difference I know of is that some versions have a 7200 rev limit and some have 7400. I think the BX and 4x4 have 7400 and the normal FWD Mi16 has 7200.